One of the most frustrating and challenging tasks is threading a needle. Furthermore, it's even harder if your hands are shaky or your eyesight is poor. Independent blind people are capable for most of daily chores but this one is particularly complicated. This needle has one big needle eye. The string can be inserted smoothly and with zero effort. The needle is made of a special steel alloy which is both flexible and rigid and keeps the geometric structure even when sewing hard and thick material such as denim and leather. The "tooth like" inner cut of the needle works as cogwheel and is designed to hold the string tightly in place while piercing through the fabric. The needles are photochemicaly etched from a sheet of metal, rounded into shape and heat strengthened in a special furnace.